[On certain aspects of using type B gastrofibroscope in gastric studies].
D000328:Adult; D000368:Aged; D001706:Biopsy / Q000295:instrumentation; D020699:Gastroscopes; D006801:Humans; D008722:Methods; D008875:Middle Aged; D013274:Stomach Neoplasms / Q000175:diagnosis
O nekotorykh osobennostiakh primeneniia gastrofibroskopa tipa B pri issledovanii zheludka.